<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .page{
            display: flex;
            height:100vh;
        }
        .menu{
            width:200px;
            height:100%;
            background-color: rgb(165, 182, 9);
        }
        .content{
            flex:1;
            height:100%;
            background-color: rgb(185, 185, 185);
        }
    </style>
</head>
<body>
    <div class="page">
        <div class="menu"></div>
        <div class="content"></div>
    </div>
    
</body>
</html>